Hook key holder



FIG. 1 is a front perspective view of a hook key holder, showing my new design;

FIG. 2 is a right edge view;

FIG. 3 is a rear view, the front view being a mirror image thereof;

FIG. 4 is a left edge view;

FIG. 5 is a top edge view; and,

FIG. 6 is a bottom edge view.

The broken line portions of FIG. 1 are shown for illustrative purposes only. 

The ornamental design for a hook key holder, as shown and described. 